Weather in Alton, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Alton
This Afternoon |
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Temperature: 91°F Wind Speed: 6 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 91. Southwest wind around 6 mph. |
Tonight |
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Temperature: 71°F Wind Speed: 2 to 6 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southwest wind 2 to 6 mph. Chance of precipitation is 30%. |
Sunday |
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Temperature: 87°F Wind Speed: 2 to 7 mph Wind Direction: S Forecast: A slight chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind 2 to 7 mph. Chance of precipitation is 30%. |
Sunday Night |
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Temperature: 72°F Wind Speed: 3 to 7 mph Wind Direction: S Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind 3 to 7 mph. Chance of precipitation is 50%. |
Monday |
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Temperature: 87°F Wind Speed: 5 to 9 mph Wind Direction: W Forecast: A chance of showers and thunderstorms before 10am, then showers and thunderstorms likely. Partly sunny, with a high near 87. West wind 5 to 9 mph. Chance of precipitation is 70%. |
Monday Night |
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Temperature: 68°F Wind Speed: 3 to 8 mph Wind Direction: NW Forecast: Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am. Partly cloudy, with a low around 68. Chance of precipitation is 70%. |
Tuesday |
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Temperature: 87°F Wind Speed: 7 mph Wind Direction: NW Forecast: Sunny, with a high near 87. |
Tuesday Night |
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Temperature: 67°F Wind Speed: 1 to 5 mph Wind Direction: NW Forecast: Mostly clear, with a low around 67. |
Wednesday |
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Temperature: 89°F Wind Speed: 3 mph Wind Direction: NW Forecast: Mostly sunny, with a high near 89. |
Wednesday Night |
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Temperature: 70°F Wind Speed: 3 mph Wind Direction: SE Forecast: Mostly clear, with a low around 70. |
Thursday |
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Temperature: 91°F Wind Speed: 2 to 6 mph Wind Direction: S Forecast: A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 91. Chance of precipitation is 20%. |
Thursday Night |
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Temperature: 72°F Wind Speed: 2 to 6 mph Wind Direction: S Forecast: A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Chance of precipitation is 20%. |
Independence Day |
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Temperature: 92°F Wind Speed: 2 to 8 mph Wind Direction: S Forecast: A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 20%. |
Friday Night |
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Temperature: 74°F Wind Speed: 7 mph Wind Direction: S Forecast: A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. Chance of precipitation is 20%. |